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| 1 | Effects of disinhibition on spatiotemporal pattern of neuronal first recruitment in neuronal networks显示文摘The propagation of neuronal activities is a key feature to understanding information processing in networks. The analysis based on first-spikes of bursts in turn plays an important role in the research of neuronal activity propagation. Our focus here is to investigate how spatiotemporal patterns of neuronal first-spikes are affected by disinhibition. Multi-electrode arrays were used to record stimulation-evoked bursts of multiple neurons in randomly cultured neuronal networks. Both the precise timing of and the rank relationships between first-spikes were analyzed. Compared with evoked bursts in the network's native state, the precise first-spike latencies in its dis-inhibited state are more consistent and the propagation of its bursting activities is much faster. Additional points of interest are that disinhibited neuronal networks can be evoked to generate stable and distinguishable neuronal first recruitment spatiotemporal patterns specific to the stimulation site, and that the disinhibition may cause the original spatiotemporal patterns to change in a heterogeneous manner with regards to different propagation pathways. | Liangbin Pana,b,c,1, Xindong Songa,b,c,1, Guangxin Xiang a,b,c, Jing Zhua,b,c, Jing Cheng a,b,c,d,a Medical Systems Biology Research Center, Tsinghua University School of Medicine, Beijing 100084, China b Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China c National Engineering Research Center for Beijing Biochip Technology, 18 Life Science Parkway, Beijing 102206, China d State Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University, Beijing 100084, China | 2009 | Progress in Natural Science:Materials International2009，19，5： | 6 |
| 2 | ^137Cs tracing dynamics of soil erosion,organic carbon,and total nitrogen in terraced fields and forestland in the Middle Mountains of Nepal显示文摘The Middle Mountains is one of the regions of Nepal most vulnerable to water erosion, where fragile geology, steep topography, anomalous climatic conditions, and intensive human activity have resulted in serious soil erosion and enhanced land degradation. Based on the 137 Cs tracing method, spatial variations in soil erosion, organic carbon, and total nitrogen(TN) in terraced fields lacking field banks and forestland were determined. Soil samples were collected at approximately 5 m and 20 m intervals along terraced field series and forestland transects respectively. Mean 137 Cs inventories of the four soil cores from the reference site was estimated at 574.33 ± 126.22 Bq m-2(1 Bq(i.e., one Becquerel) is equal to 1 disintegration per second(1 dps)). For each terrace, the 137 Cs inventory generally increased fromupper to lower slope positions, accompanied by a decrease in the soil erosion rate. Along the entire terraced toposequence, 137 Cs data showed that abrupt changes in soil erosion rates could occur between the lower part of the upper terrace and the upper part of the immediate terrace within a small distance. This result indicated that tillage erosion is also a dominant erosion type in the sloping farmland of this area. At the same time, we observed a fluctuant decrease in soil erosion rates for the whole terraced toposequence as well as a net deposition at the toe terrace. Although steep terraces(lacking banks and hedgerows) to some extent could act to limit soil sediment accumulation in catchments, soil erosion in the terraced field was determined to be serious. For forestland, with the exception of serious soil erosion that had taken place at the top of slopes due to concentrated flows from a country road situated above the forestland site, spatialvariation in soil erosion was similar to the 'standard' water erosion model. Soil organic carbon(SOC) and TN inventories showed similar spatial patterns to the 137 Cs inventory for both toposequences investigated. However, due to the different dominant erosion processes between the two, we found similar patterns between the <0.002 mm soil particle size fraction(clay sized) and 137 Cs inventories in terraced fields, while different patterns could be found between 137 Cs inventories and the <0.002 mm soil particle size fraction in the forestland site. Such results confirm that 137 Cs can successfully trace soil erosion, SOC and soil nitrogen dynamics in steep terraced fields and forestland in the Middle Mountains of Nepal. | SU Zheng-an XIONG Dong-hong DENG Wei DONG Yi-fan MA Jing PADMA C Poudel GURUNG B Sher | 2016 | Journal of Mountain Science2016，13，10： | 4 |
| 3 | Raman Spectroscopic Study on the Microstructure of GeS2-Ga2S3-KCl Glasses显示文摘 | H Z Tao X J Zhao C B Jing | | 0，，： | 2 |
| 4 | Microstructural Probing of (1-x)GeS2-xGa2S3 System Glasses By Raman Scattering显示文摘 | H Z Tao X J Zhao C B Jing S Liu | | Journal of Wuhan University of Technology (Materials Science Edition)0，，： | 2 |
| 5 | Raman Scattering Studies of the GeS2-Ga2 S3-CsCl Glassy System显示文摘 | H Z Tao X J Zhao C B Jing H Yang,S Mao | | 0，，： | 2 |
| 6 | Microstructure and Thermal Properties Analysis of (1-x) As2S3-xCdBr2 Glass System显示文摘 | H Z Tao X J Zhao C B Jing X H Wang | | Journal of Wuhan University of Technology (Materials Science Edition)0，，： | 2 |
| 7 | The TIL commissioning and performance显示文摘 | X Zhang W Zheng X Wei F Jing Z Sui K Zheng Q Xu X Yuan X Jiang L Yang P Ma M Li J Wang D Hu S He F Li Z Peng B Feng H Zhou L Guo X Li X Zhang J Su Q Zhu H Yu R Zhao C Ma H He D Fan W Zhang | 2008 | Journal of Physics: Conference Series2008，，3： | 1 |
| 8 | Investigating the solubility of CO2 in polypropylene using various EOS models显示文摘 | Li Gary Wang Jing Park C B | 2006 | Cell Polym2006，25，4： | 1 |
| 9 | Measurement of gas solubility in linear/branched PP melts显示文摘 | Li Gary Wang Jing Park C B | 2007 | J Polym Sci Pol Phys2007，45，17： | 1 |
| 10 | 查看详情显示文摘 | Chen L Li P C Cheng Y X Xie Z Y Wang L X Jing X B Wang F S | | 0，，26： | 1 |
| 11 | 显示文摘 | Wang Y Z Yang Q B Shan G Wang C Du J Wang S Li Y Chen X Jing X Wei Y | 2005 | Materials Letters2005，59，： | 1 |
| 12 | Review of photo-luminescence performance of nano-sized semiconductor materials and its relationships with photocatalytic activity显示文摘 | JING L Q QU Y C WANG B Q el al | 2006 | SoLar Energy Materials : Solar Cells2006，90，12： | 1 |
| 13 | H5N1 influenza marker vaccine for serological differentiation between vaccinated and infected chickens显示文摘 | LI C PING J JING B | 2008 | Biochemical and Biophysical Research Communications2008，372，2： | 1 |
| 14 | Genome-wide association study of flowering time and grain yield traits in a worldwide collection of rice germplasm 显示文摘 | Huang X Zhao Y Wei X Li C Wang A Zhao Q Li W Guo Y Deng L Zhu C Fan D Lu Y Weng Q Liu K Zhou T Jing Y SiL DongG Huang T Lu T Feng Q Qian Q Li J Han B | 2011 | Nature Genetics2011，44，1： | 1 |
| 15 | Infrated spectra of soluble poly aniline 显示文摘 | Tang J S Jing X B Waing B C | 1998 | Synthetic metals1998，24，23： | 1 |
| 16 | Structure and catalytic mechanism of the human histone methyltransferase SET7/9 显示文摘 | XIAO B JING C WIISON J R | 2003 | Nature2003，421，6923： | 1 |
| 17 | Oxidation of oily sludge in supercritical water显示文摘 | CUI B C CUI F Y JING G L XU S L HUO WJ LIU S Z | 2009 | J Hazard Mater2009，165，13： | 1 |
| 18 | The Formation of PSB-like sheer Bands in Cyclically Deformed Ultrafine Grained Copper Processed by ECAP显示文摘 | Wa S D Wang I G Jing C B etc | 2003 | Scripta Materialia2003，，48： | 1 |
| 19 | Genetic organiza-tion of Pasteurella multocida cap Loci and development of amultiplex capsular PCR typing system显示文摘 | KIRSTY M T JOHN D B JING Y C | 2001 | J Clin Microbiol2001，39，3： | 1 |
| 20 | Review of photolumi- nescence performance of nano-sized semiconductor materi- als and its relationships with photocatalytie activity 显示文摘 | Jing L Q Qu Y C Wang B Q | 2006 | Solar Energy Materials and Solar Cells2006，90，12： | 1 |
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